diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index 29e08e22e4..29da0372b3 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -196,6 +196,8 @@ MainWindow::MainWindow(QWidget *parent, Qt::WFlags flags)
             mUi->mapView->zoomable(), SLOT(resetZoom()));
 
     connect(mUi->actionNewTileset, SIGNAL(triggered()), SLOT(newTileset()));
+    connect(mUi->actionAddExternalTileset, SIGNAL(triggered()),
+            SLOT(addExternalTileset()));
     connect(mUi->actionResizeMap, SIGNAL(triggered()), SLOT(resizeMap()));
     connect(mUi->actionOffsetMap, SIGNAL(triggered()), SLOT(offsetMap()));
     connect(mUi->actionMapProperties, SIGNAL(triggered()),
@@ -626,6 +628,28 @@ void MainWindow::newTileset()
         mMapDocument->undoStack()->push(new AddTileset(mMapDocument, tileset));
 }
 
+void MainWindow::addExternalTileset()
+{
+    if (!mMapDocument)
+        return;
+
+    const QString start = fileDialogStartLocation();
+    const QString fileName =
+            QFileDialog::getOpenFileName(this, tr("Add External Tileset"),
+                                         start,
+                                         tr("Tiled tileset files (*.tsx)"));
+    if (fileName.isEmpty())
+        return;
+
+    TmxMapReader reader;
+    if (Tileset *tileset = reader.readTileset(fileName)) {
+        mMapDocument->undoStack()->push(new AddTileset(mMapDocument, tileset));
+    } else {
+        QMessageBox::critical(this, tr("Error Reading Tileset"),
+                              reader.errorString());
+    }
+}
+
 void MainWindow::resizeMap()
 {
     if (!mMapDocument)
diff --git a/src/mainwindow.h b/src/mainwindow.h
index bbe34bea41..5bb803ffcc 100644
--- a/src/mainwindow.h
+++ b/src/mainwindow.h
@@ -102,6 +102,7 @@ private slots:
     void openPreferences();
 
     void newTileset();
+    void addExternalTileset();
     void resizeMap();
     void offsetMap();
     void editMapProperties();
diff --git a/src/mainwindow.ui b/src/mainwindow.ui
index 03b7baeae1..a40576f494 100644
--- a/src/mainwindow.ui
+++ b/src/mainwindow.ui
@@ -99,6 +99,7 @@
      <string>&amp;Map</string>
     </property>
     <addaction name="actionNewTileset"/>
+    <addaction name="actionAddExternalTileset"/>
     <addaction name="separator"/>
     <addaction name="actionResizeMap"/>
     <addaction name="actionOffsetMap"/>
@@ -354,6 +355,11 @@
     <string>&amp;Export As...</string>
    </property>
   </action>
+  <action name="actionAddExternalTileset">
+   <property name="text">
+    <string>&amp;Add External Tileset...</string>
+   </property>
+  </action>
  </widget>
  <layoutdefault spacing="6" margin="11"/>
  <customwidgets>
diff --git a/src/tmxmapreader.cpp b/src/tmxmapreader.cpp
index e0d7ce5a4b..9063a29564 100644
--- a/src/tmxmapreader.cpp
+++ b/src/tmxmapreader.cpp
@@ -789,3 +789,15 @@ Map *TmxMapReader::fromString(const QString &string)
 
     return map;
 }
+
+Tileset *TmxMapReader::readTileset(const QString &fileName)
+{
+    mError.clear();
+
+    TmxReader reader;
+    Tileset *tileset = reader.readTileset(fileName);
+    if (!tileset)
+        mError = reader.errorString();
+
+    return tileset;
+}
diff --git a/src/tmxmapreader.h b/src/tmxmapreader.h
index c4283ae293..ce2dae69d5 100644
--- a/src/tmxmapreader.h
+++ b/src/tmxmapreader.h
@@ -27,6 +27,9 @@
 #include <QString>
 
 namespace Tiled {
+
+class Tileset;
+
 namespace Internal {
 
 /**
@@ -47,6 +50,8 @@ class TmxMapReader : public MapReaderInterface
      */
     Map *fromString(const QString &string);
 
+    Tileset *readTileset(const QString &fileName);
+
     QString nameFilter() const { return tr("Tiled map files (*.tmx)"); }
 
     QString errorString() const { return mError; }